Chọn đáp án đúng: Dãy gồm các chất chứa liên kết cộng hóa trị không phân cực là? A. Cl2 ; O3 ; H2O.
B. K2O ; Cl2 ; O3.
C. O2 ; O3 ; H2O.
D. O3 ; O2 ; H2.

Which of the following statements is false regarding aromaticity? a. the compound must be cyclic b. the compound must be fully conjugated c. the compound must be planar d.the number of electrons in the pi system must satisfy the hückel 4n+2 rule e. the compound must have a neutral charge

Nonmetal halogen family atmoic mass 35

Suppose the universe were completely empty except for one object-a solid sphere moving through space of 100 km/s. what sort of path would the object be moving in? explain your answer